Door frame pressing and trimming device of fireproof door

Abstract

The utility model discloses a door frame pressing device of a fireproof door, which relates to the technical field of fireproof door processing and comprises a bottom plate, a feeding component is arranged at the front end above the bottom plate, and an upper pressing component is further arranged at the rear end above the bottom plate; the feeding assembly comprises mounting strips which are fixedly connected to the upper surface of the bottom plate in the longitudinal direction at equal intervals from left to right, feeding blocks are movably connected to the tops of the mounting strips, and a plurality of mounting frames are fixedly connected to the front end face and the rear end face of each feeding block in the transverse direction at equal intervals. The clamping plates are driven to move through the sleeves and the first threaded rods, the front end and the rear end of a door frame are clamped through the clamping plates, the problem that in the prior art, the door frame is not convenient to fix in the pressing and finishing process is solved, meanwhile, the lifting block and the lower limiting plate are driven to ascend and descend through the second threaded rods in the mounting frame, and the fixing effect is good. And the descending distance of the lower pressing block is limited through the lower limiting plate, so that the problem that the pressing distance of the lower pressing block is inconvenient to control in the prior art is solved.

Description

Technical Field

[0001] This utility model belongs to the field of fire door processing technology, and in particular relates to a door frame pressing device for fire doors. Background Technology

[0002] Fire doors are doors that can meet the requirements of fire resistance stability, integrity and heat insulation within a certain period of time. They are fire-resistant partitions with a certain degree of fire resistance, installed in fire compartments, evacuation stairwells, vertical shafts and other similar spaces. The door frame is one of the important structural components of a fire door, used to install the door panel. In order to facilitate the pressing and shaping of the door frame of a fire door, a pressing and shaping device is usually used.

[0003] The existing door frame pressing and shaping device mainly consists of two parts: a hydraulically driven upper pressing component and a movable feeding component. Both the upper pressing component and the feeding component are integrally machined from heavy metal blocks. The door frame to be pressed and shaped is fed into the lower part of the upper pressing component through the feeding component, and the upper pressing component is hydraulically driven to press and shape the door frame.

[0004] However, it still has the following drawbacks in practical use:

[0005] 1. The existing door frame pressing device has a smooth upper surface for the feeding component, and the door frame is placed directly on the upper surface of the feeding component. It lacks a structure to fix the door frame, which makes the door frame prone to displacement due to external forces during the pressing process, thus affecting the pressing effect.

[0006] 2. The existing door frame pressing device uses a hydraulic cylinder to drive the upper pressing component. It lacks a structure to limit the lifting and lowering movement of the upper pressing component. As a result, during the pressing process, the door frame is easily over-pressed due to excessive movement of the upper pressing component, which affects the overall pressing effect.

[0007] To address these issues, we provide a door frame pressing device for fire doors. Utility Model Content

[0008] The purpose of this utility model is to provide a door frame pressing device for fire doors. The device uses a sleeve and a first threaded rod to drive the clamping plate to move, and the clamping plate clamps the front and rear ends of the door frame, solving the problem of the existing device being inconvenient to fix the door frame during the pressing process. At the same time, the second threaded rod in the mounting frame drives the lifting block and the lower limit plate to move up and down, and the lower limit plate limits the descent distance of the pressing block, solving the problem of the existing device being inconvenient to control the pressing distance of the pressing block.

[0009] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0010] This utility model is a door frame pressing device for fire doors, including a base plate, a feeding component is provided at the upper front end of the base plate, and an upper pressing component is provided at the upper rear end of the base plate.

[0011] The feeding assembly includes mounting strips that are fixedly connected longitudinally to the upper surface of the base plate at equal intervals from left to right. A feeding block is movably connected to the top of the mounting strips. Multiple mounting brackets are fixedly connected laterally at equal intervals on the front and rear ends of the feeding block. A clamping plate is movably connected between adjacent mounting brackets. A sleeve is rotatably inserted through the end face of each mounting bracket. A first threaded rod is threaded inside the sleeve. One end of the first threaded rod is fixedly connected to the front or rear end face of the clamping plate.

[0012] The upper pressure assembly includes an upper pressure block movably connected to the rear end of the base plate. Both sides of the upper pressure block are provided with mounting frames. The bottom of the mounting frames is fixedly connected to both sides of the upper surface of the base plate. The interior of each mounting frame is rotatably connected with a second threaded rod. The top end of the second threaded rod rotatably passes through the top of the mounting frame and is fixedly connected to a second handwheel. A lifting block is threaded on the second threaded rod. A lower limit plate is fixedly connected to the side of the lifting block near the upper pressure block.

[0013] A further feature of this invention is that: each of the mounting strips is fixedly connected to a slide rail along the longitudinal direction, and multiple sliders are slidably connected to the slide rails at equal intervals along the longitudinal direction, with the tops of the sliders fixedly connected to the bottom of the feeding block.

[0014] A further feature of this invention is that handles are fixedly connected to both sides of the front and rear end faces of the feeding block.

[0015] A further feature of this invention is that: sliding rods are welded to both sides of the end faces of the clamping plates that are far apart from each other, and the end of the sliding rod that is far away from the clamping plate moves through both sides of the end face of the mounting frame and is threaded with a limiting nut.

[0016] A further feature of this invention is that: transmission gears are fitted on the outer wall of the sleeve, and the transmission gears are all located on the side of the mounting frame that are far apart from each other. A synchronizing rod is rotatably passed through the interior of the feeding block along the longitudinal direction. Both ends of the synchronizing rod rotatably pass through the mounting frame and are fixedly connected to a first handwheel. Drive gears are fitted on the front and rear ends of the outer wall of the synchronizing rod, and the drive gears are meshed below the transmission gears.

[0017] A further feature of this invention is that hydraulic cylinders are fixedly connected to the four sides of the rear end of the upper surface of the base plate, and L-shaped frames are fixedly connected to the output shafts of the hydraulic cylinders. The vertical arms of the L-shaped frames are welded to the front and rear ends of the outer walls on both sides of the upper pressure block.

[0018] A further feature of this invention is that: L-shaped plates are welded to the front and rear ends of the mounting frame, and distance scale lines are engraved at equal intervals along the vertical direction on the longitudinal support arms of the L-shaped plates. A pointer is fixedly connected to the outer wall of the lifting block on the side away from the upper pressure block.

[0019] A further feature of this invention is that an upper limit plate is welded to the top of each mounting frame, and the lower surface of the upper limit plate is respectively attached to both sides of the upper surface of the upper pressure block.

[0020] This utility model has the following beneficial effects:

[0021] 1. This utility model, by setting up a feeding assembly, places the fire door frame on the feeding block and rotates the first handwheel. The first handwheel drives the synchronizing rod to rotate synchronously. Under the action of the meshing connection between the drive gear and the transmission gear, the sleeve rotates. Under the action of the threaded connection between the sleeve rod and the first threaded rod, the first threaded rod drives the clamping plate to clamp the front and rear ends of the door frame respectively, which facilitates fixing the door frame on the feeding block and prevents the door frame from moving due to external force during the pressing process, thus facilitating the pressing work of the door frame.

[0022] 2. This utility model, by setting up an upper pressing component, rotates the second handwheel, which drives the second threaded rod to rotate synchronously. Under the action of the threaded connection between the second threaded rod and the lifting block, the lifting block drives the lower limit plate to rise and fall, so that the lower limit plate moves to a specified height. The lower limit plate controls the descent distance of the upper pressing block, thereby facilitating the control of the descent distance of the upper pressing block and avoiding damage to the door frame caused by excessive descent distance of the upper pressing block. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of a door frame pressing device for a fire door.

[0024] Figure 2 This is a schematic diagram of the feeding assembly of this utility model.

[0025] Figure 3 This is a schematic diagram of the installation strip of this utility model.

[0026] Figure 4 This is a structural disassembly diagram of the mounting bracket, clamping plate, and sleeve of this utility model.

[0027] Figure 5 This is a schematic diagram of the structure of the pressure assembly of this utility model.

[0028] Figure 6 This is a schematic diagram of the mounting frame of this utility model.

[0029] Figure 7 This is a structural disassembly diagram of the lifting block of this utility model.

[0030] The attached diagram lists the components represented by each number as follows:

[0031] 1-Base plate, 2-Feeding assembly, 201-Mounting strip, 201a-Slide rail, 201b-Slider, 202-Feeding block, 202a-Handle, 203-Mounting bracket, 204-Clamping plate, 204a-Slide rod, 204b-Limit nut, 205-Sleeve, 205a-Transmission gear, 206-First threaded rod, 207-Synchronizing rod, 207a-First handwheel, 207b-Drive gear, 3-Upper pressing assembly, 301-Upper pressing block, 301a-Hydraulic cylinder, 301b-L-shaped frame, 302-Mounting frame, 302a-Second threaded rod, 302b-Second handwheel, 302c-Upper limit plate, 302d-L-shaped plate, 302e-Distance scale line, 303-Lifting block, 303a-Pointer, 304-Lower limit plate. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0033] Example 1

[0034] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this is the first embodiment of the present invention. This embodiment provides a door frame pressing device for a fire door, including a base plate 1. A feeding assembly 2 is provided at the upper front end of the base plate 1. The feeding assembly 2 includes an installation strip 201, a feeding block 202, an installation frame 203, a clamping plate 204, a sleeve 205, and a first threaded rod 206. The sleeve 205 and the clamping plate 204 drive the clamping plate 204 to move longitudinally towards or away from each other on the feeding block 202, and the clamping plate 204 clamps the door frame on the feeding block 202, thus solving the problem that it is inconvenient to fix the door frame of the fire door during the pressing process.

[0035] Specifically, the mounting strip 201 is fixedly connected longitudinally to the upper surface of the base plate 1 at equal intervals from left to right. A feeding block 202 is movably connected to the top of the mounting strip 201. Multiple mounting brackets 203 are fixedly connected laterally at equal intervals on the front and rear end faces of the feeding block 202. A clamping plate 204 is movably connected between adjacent mounting brackets 203. A sleeve 205 is rotatably inserted through the end face of each mounting bracket 203. A first threaded rod 206 is threaded inside the sleeve 205. One end of the first threaded rod 206 is fixedly connected to the front or rear face of the clamping plate 204. The mounting strip 201 is made of I-beams. The mounting strip 201 is used to movably mount the feeding block 202 on the base plate 1. The feeding block 202 is used to load and unload the fire door frame. The mounting bracket 203 is used to install the clamping plate 204 and other structures. The height of the clamping plate 204 is lower than the thickness of the fire door frame. The clamping plate 204 is used to fix the door frame on the feeding block 202. The sleeve 205 and the first threaded rod 206 are used to drive the clamping plate 204 to move towards or away from the feeding block 202.

[0036] Furthermore, each of the mounting strips 201 has a slide rail 201a fixedly connected to its top along the longitudinal direction, and multiple sliders 201b are slidably connected to the slide rail 201a at equal intervals along the longitudinal direction. The top of each slider 201b is fixedly connected to the bottom of the feeding block 202.

[0037] Handles 202a are fixedly connected to both sides of the front and rear ends of the feeding block 202;

[0038] Slide rods 204a are welded to both sides of the end faces of the clamping plate 204 that are far apart from each other. The end of the slide rod 204a that is far away from the clamping plate 204 moves through both sides of the end face of the mounting bracket 203 and is threaded with a limit nut 204b.

[0039] Transmission gears 205a are fitted on the outer wall of the sleeve 205. The transmission gears 205a are all located on the side of the mounting frame 203 that are far apart from each other. The feed block 202 has a synchronizing rod 207 that rotates through it longitudinally. Both ends of the synchronizing rod 207 rotate through the mounting frame 203 and are fixedly connected to the first handwheel 207a. The front and rear ends of the outer wall of the synchronizing rod 207 are fitted with drive gears 207b. The drive gears 207b are all meshed below the transmission gears 205a.

[0040] The operation process of this embodiment is as follows: First, the door frame of the fire door is placed on the feeding block 202, and the first handwheel 207a is rotated. The first handwheel 207a drives the synchronous rod 207 to rotate synchronously. Under the action of the meshing connection between the drive gear 207b and the transmission gear 205a, the sleeve 205 rotates. Under the action of the threaded connection between the sleeve rod and the first threaded rod 206, the first threaded rod 206 drives the clamping plate 204 to clamp the front and rear ends of the door frame respectively. Finally, the external force is applied to the feeding block 202 by the handle 202a, so that the feeding block 202 transports the door frame to the pressing station for pressing.

[0041] Example 2

[0042] Please see Figure 1 , Figure 5 , Figure 6 and Figure 7 As shown, this is the second embodiment of the present invention. This embodiment is based on the previous embodiment, but differs from the previous embodiment in that: an upper pressing component 3 is also provided at the upper rear end of the base plate 1. The upper pressing component 3 includes an upper pressing block 301, a mounting frame 302, a lifting block 303, and a lower limit plate 304. The lifting block 303 and the lower limit plate 304 are driven to rise and fall by the second threaded rod 302a in the mounting frame 302, and the maximum descent height of the upper pressing block 301 is limited by the lower limit plate 304, which solves the problem that it is inconvenient to control the descent distance of the upper pressing block 301 in the existing system.

[0043] Specifically, the upper pressure block 301 is movably connected to the upper rear end of the base plate 1. Mounting frames 302 are provided on both sides of the upper pressure block 301. The bottoms of the mounting frames 302 are fixedly connected to the upper surfaces of the base plate 1 on both sides. A second threaded rod 302a is rotatably connected inside each mounting frame 302. The top end of the second threaded rod 302a rotatably passes through the top of the mounting frame 302 and is fixedly connected to a second handwheel 302b. A lifting block 303 is threaded onto the second threaded rod 302a. The lifting block 303 is close to the upper pressure block 301. A lower limit plate 304 is fixedly connected to one side. The upper pressure block 301 is used to press and straighten the door frame of the fire door. The mounting frame 302 is used to install the second threaded rod 302a. The second threaded rod 302a is used to drive the lifting block 303 to move. The second handwheel 302b is used to facilitate the rotation of the second threaded rod 302a. The lifting block 303 is used to adjust the height of the lower limit plate 304. The lower limit plate 304 is used to control the descent distance of the upper pressure block 301.

[0044] Furthermore, hydraulic cylinders 301a are fixedly connected to the four sides of the rear end of the upper surface of the base plate 1. The output shafts of the hydraulic cylinders 301a are fixedly connected to L-shaped frames 301b. The vertical support arms of the L-shaped frames 301b are respectively welded to the front and rear ends of the outer walls on both sides of the upper pressure block 301.

[0045] L-shaped plates 302d are welded to the front and rear ends of the mounting frame 302. Distance scale lines 302e are engraved at equal intervals along the vertical direction on the longitudinal support arms of the L-shaped plates 302d. A pointer 303a is fixedly connected to the outer wall of the lifting block 303 on the side away from the upper pressure block 301.

[0046] The top of the mounting frame 302 is welded with an upper limit plate 302c, and the lower surface of the upper limit plate 302c is attached to both sides of the upper surface of the upper pressure block 301.

[0047] The rest of the structure is the same as in Example 1.

[0048] The operation process of this embodiment is as follows: First, adjust the position of the lower limit plate 304 according to the thickness of the door frame. Rotate the second handwheel 302b, which drives the second threaded rod 302a to rotate synchronously. Under the action of the threaded connection between the second threaded rod 302a and the lifting block 303, the lifting block 303 drives the lower limit plate 304 to rise and fall, so that the lower limit plate 304 moves to the specified height. Then, place the fire door frame below the upper pressure block 301 and start the four sets of hydraulic cylinders 301a at the same time. This causes the output shaft of the hydraulic cylinder 301a to drive the upper pressure block 301 to move through the L-shaped frame 301b. The upper pressure block 301 is used to press and adjust the door frame, and the lower limit plate 304 controls the descent distance of the upper pressure block 301.

[0049] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0050] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it.

Claims

1. A door frame pressing device for a fire door, comprising a base plate (1), characterized in that: A feeding assembly (2) is provided at the upper front end of the base plate (1), and an upper pressing assembly (3) is provided at the upper rear end of the base plate (1). The feeding assembly (2) includes mounting strips (201) that are fixedly connected longitudinally to the upper surface of the base plate (1) at equal intervals from left to right, and a feeding block (202) is movably connected to the top of the mounting strips (201). Multiple mounting brackets (203) are fixedly connected laterally at equal intervals on the front and rear ends of the feeding block (202), and a clamping plate (204) is movably connected between adjacent mounting brackets (203). A sleeve (205) is rotatably passed through the end face of each mounting bracket (203), and a first threaded rod (206) is threaded inside the sleeve (205). One end of the first threaded rod (206) is fixedly connected to the front or rear end face of the clamping plate (204). The upper pressing component (3) includes an upper pressing block (301) movably connected to the upper rear end of the base plate (1), and mounting frames (302) are provided on both sides of the upper pressing block (301). The bottom of the mounting frames (302) is fixedly connected to both sides of the upper surface of the base plate (1), and a second threaded rod (302a) is rotatably connected inside the mounting frames (302). The top end of the second threaded rod (302a) rotatably passes through the top of the mounting frame (302) and is fixedly connected to a second handwheel (302b). A lifting block (303) is threaded on the second threaded rod (302a), and a lower limit plate (304) is fixedly connected to the side of the lifting block (303) near the upper pressing block (301).

2. The door frame pressing device for a fire door according to claim 1, characterized in that, The top of each mounting strip (201) is fixedly connected to a slide rail (201a) along the longitudinal direction, and multiple sliders (201b) are slidably connected to the slide rail (201a) at equal intervals along the longitudinal direction. The top of each slider (201b) is fixedly connected to the bottom of the feeding block (202).

3. The door frame pressing device for a fire door according to claim 2, characterized in that, The feed block (202) has handles (202a) fixedly connected to both sides of its front and rear end faces.

4. The door frame pressing device for a fire door according to claim 1, characterized in that, The clamping plate (204) has a sliding rod (204a) welded to both sides of the end face that are far apart from each other. The end of the sliding rod (204a) that is far away from the clamping plate (204) moves through both sides of the end face of the mounting bracket (203) and is threaded with a limiting nut (204b).

5. The door frame pressing device for a fire door according to claim 1, characterized in that, The outer wall of each sleeve (205) is fitted with a transmission gear (205a), and the transmission gears (205a) are all located on the side of the mounting frame (203) that are far apart from each other. The interior of the feeding block (202) is rotatably connected to a synchronizing rod (207), and both ends of the synchronizing rod (207) rotatably pass through the mounting frame (203) and are fixedly connected to a first handwheel (207a). The front and rear ends of the outer wall of the synchronizing rod (207) are fitted with drive gears (207b), and the drive gears (207b) are meshed below the transmission gears (205a).

6. The door frame pressing device for a fire door according to claim 1, characterized in that, Hydraulic cylinders (301a) are fixedly connected to the four sides of the rear end of the upper surface of the base plate (1), and the output shafts of the hydraulic cylinders (301a) are fixedly connected to L-shaped frames (301b). The vertical arms of the L-shaped frames (301b) are respectively welded to the front and rear ends of the outer walls on both sides of the upper pressure block (301).

7. The door frame pressing device for a fire door according to claim 1, characterized in that, L-shaped plates (302d) are welded to the front and rear ends of the mounting frame (302), and distance scale lines (302e) are engraved at equal intervals along the vertical direction on the longitudinal support arms of the L-shaped plates (302d). A pointer (303a) is fixedly connected to the outer wall of the lifting block (303) on the side away from the upper pressure block (301).

8. The door frame pressing device for a fire door according to claim 7, characterized in that, The top of each mounting frame (302) is welded with an upper limit plate (302c), and the lower surface of the upper limit plate (302c) is respectively attached to both sides of the upper surface of the upper pressure block (301).

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